Symfony one to many relations (embedRelation)

In one of my recent gaming sites, I was trying to find a way to have one game fit in as many different categories. I am still rather new at Symfony, and heck PHP programming in general, so the idea of setting this up myself was a bit overwhelming. At least being able to manage it correctly in the backend. The data structure, thanks to Doctrine, wasn’t that bad to setup.

Anyways, I found an awesome blog post talking about exactly what I wanted to do. I followed this post step by step, doing slight modifications for my setup, and it worked perfectly!